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Complexity with Heterogeneous Fundamentalists and a Multiplicative Price Mechanism

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  • Ahmad K Naimzada

    () (DISEI, Università degli studi di Firenze)

  • Giorgio Ricchiuti

    () (DISEI, Università degli studi di Firenze)

Abstract

In contrast with the canonical models, Naimzada and Ricchiuti (2008, 2009) show that the interaction of groups of agents who have the same trading rule but present different beliefs about the fundamental value could be a source of instability in financial markets. Differently from Naimzada and Ricchiuti (2008, 2009), we assume the market maker employs a so-called multiplicative price mechanism (Tuinstra, 2002 and Zhu et al., 2009). We show that the occurrence of heterogeneity has an ambiguous role: it may either stabilize or destabilize the market.

Suggested Citation

  • Ahmad K Naimzada & Giorgio Ricchiuti, 2013. "Complexity with Heterogeneous Fundamentalists and a Multiplicative Price Mechanism," Working Papers - Economics wp2013_03.rdf, Universita' degli Studi di Firenze, Dipartimento di Scienze per l'Economia e l'Impresa.
  • Handle: RePEc:frz:wpaper:wp2013_03.rdf
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    References listed on IDEAS

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    1. William A. Brock & Cars H. Hommes, 1997. "A Rational Route to Randomness," Econometrica, Econometric Society, vol. 65(5), pages 1059-1096, September.
    2. Ahmad Naimzada & Giorgio Ricchiuti, 2007. "Dynamic Effects of Increasing Heterogeneity in Financial Markets," Working Papers 111, University of Milano-Bicocca, Department of Economics, revised 2007.
    3. Simone Bertoli & Giampiero Gallo & Giorgio Ricchiuti, 2010. "Exchange market pressure: some caveats in empirical applications," Applied Economics, Taylor & Francis Journals, vol. 42(19), pages 2435-2448.
    4. Westerhoff, Frank & Reitz, Stefan, 2005. "Commodity price dynamics and the nonlinear market impact of technical traders: empirical evidence for the US corn market," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 349(3), pages 641-648.
    5. Ahmad Naimzada & Giorgio Ricchiuti, 2006. "Heterogeneous Fundamentalists and Imitative Processes," Working Papers 104, University of Milano-Bicocca, Department of Economics, revised Nov 2006.
    6. Westerhoff, Frank H., 2004. "Greed, fear and stock market dynamics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 343(C), pages 635-642.
    7. Zhu, Mei & Chiarella, Carl & He, Xue-Zhong & Wang, Duo, 2009. "Does the market maker stabilize the market?," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 388(15), pages 3164-3180.
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    Cited by:

    1. Alessandro Carraro & Giorgio Ricchiuti, 2014. "Heterogeneous Fundamentalists and Market Maker Inventories," Working Papers - Economics wp2014_16.rdf, Universita' degli Studi di Firenze, Dipartimento di Scienze per l'Economia e l'Impresa.
    2. repec:spr:joevec:v:27:y:2017:i:5:d:10.1007_s00191-017-0506-8 is not listed on IDEAS

    More about this item

    Keywords

    mathematical economics; chaos; heterogeneous interacting agents; financial markets.;

    JEL classification:

    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations

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